Thinset not working

[sandyb]

not sure if I’m in the right place, but here goes…..
I have been using “thinset” on the edge of these tiles, is there something that would be more appropriate and longer lasting?
Thanks
Sandy

 

[wireform]

Probably grout but if it's a large space use grout specifically for large grout lines.

 

[ajw22]

not sure if I’m in the right place, but here goes…..
I have been using “thinset” on the edge of these tiles, is there something that would be more appropriate and longer lasting?
Thanks
Sandy

Grout, not thinset.

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